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binder: Stub out debug prints by default

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Binder code is very hot, so checking frequently to see if a debug
message should be printed is a waste of cycles. We're not debugging
binder, so just stub out the debug prints to compile them out entirely.

Signed-off-by: Sultan Alsawaf <sultan@kerneltoast.com>
This commit is contained in:
Sultan Alsawaf 2021-02-06 20:17:09 -08:00 committed by spakkkk
parent 21ef075aef
commit 143b27d222
1 changed files with 11 additions and 0 deletions
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11
drivers/android/binder.c
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@ -148,6 +148,7 @@ static int binder_set_stop_on_user_error(const char *val,
module_param_call(stop_on_user_error, binder_set_stop_on_user_error,
param_get_int, &binder_stop_on_user_error, 0644);
#ifdef DEBUG
#define binder_debug(mask, x...) \
do { \
if (binder_debug_mask & mask) \
@ -161,6 +162,16 @@ module_param_call(stop_on_user_error, binder_set_stop_on_user_error,
if (binder_stop_on_user_error) \
binder_stop_on_user_error = 2; \
} while (0)
#else
static inline void binder_debug(uint32_t mask, const char *fmt, ...)
{
}
static inline void binder_user_error(const char *fmt, ...)
{
if (binder_stop_on_user_error)
binder_stop_on_user_error = 2;
}
#endif
#define to_flat_binder_object(hdr) \
container_of(hdr, struct flat_binder_object, hdr)